do not drink alcohol in excess with cialis. side effects may include headache, upset stomach, delayed backache or muscle ache. to avoid long-term injury, seek immediate medical help for an erection lasting more than four hours. if you have any sudden decrease or loss in hearing or vision, or if you have any allergic reactions such as rash, hives, swelling of the lips, tongue or throat, or difficulty breathing or swallowing, stop taking cialis and get medical help right away. ask your doctor about cialis for daily use and a 30-tablet free trial. >>> malala yousufzai has made her first video since the taliban attempted to assassinate her. we'll see those videos and be joined by a man who knows her later. and next, chris christie goes to letterman, msnbc's senior analyst, sam stein, will join me next to discuss the big event. at a dry cleaner, we replaced people with a machine. what? customers didn't like it. so why do banks do it? hello? hello?! if your bank doesn't let you talk to a real person 24/7, you need an ally. hello? all